The most valid hypothesis for why the control of gene expression is more complex in eukaryotes than in bacteria is the most valid hypothesis for why the control of gene expression is more complex in eukaryotes than in bacteria is more complicated cell structures in eukaryotes require more complex gene regulatory mechanisms the larger number of genes in eukaryotes means that regulation is more complex the need to create many differentiated cell types in eukaryotes means that there must be many mechanisms to modulate gene expression the need to respond to environmental signals in eukaryotes is greater than that in prokaryotic cells

Prokaryotic organisms tend to be single celled and rely on many simple mechanisms for nutrition and transport. However, eukaryotic organisms are more complex and have multiple systems within in their body, consisting of specialized cells and structures. Therefore, because the need to create many differentiated cell types in eukaryotes means that there must be many mechanisms to modulate gene expression.

answer: carbon 14 can only be used to determine the age of the organisms that were once living, and igneous rocks are non living.

explanation:

carbon 14 dating is used to determine the age of the sample by estimating the amount of carbon 14 present in the sample and then comparing it with a reference standard.carbon 14 is a isotope of carbon which is radioactive and unstable. carbon 14 is assimilated by all plants and animals throughout their life from carbon dioxide. however, one the organisms die they stop this assimilation and the carbon 14 content starts to decrease.by knowing how much of carbon 14 is left in an organism after his death, one can estimate the age of the organism. the materials whose age can be estimated by carbon 14 method are the organic compounds. however, some inorganic compounds such as aragonite   shell can also be dated.however, if we consider the igneous rocks it is a non living component which never accumulated carbon 14 in it and thus, we cannot use carbon 14 dating method to estimate its age.

only b